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Lasers are effective for some skin conditions but can cause side effects like scarring and pigment changes; careful selection is important, and botulinum toxin type A is successful in reducing sweat in palmar hyperhidrosis.

Low-dose acitretin helps nail psoriasis, stem cells may treat scarring alopecia, Chinese men have lower baldness rates, lateral foldplasty is good for ingrown toenails, hair diameter helps diagnose female baldness, childhood trauma linked to alopecia areata, certain hair-weaving leads to scalp conditions in African American women, and new methods for hair research and understanding hair and sweat gland development were introduced.

Certain skin drugs and topical agents, including some natural extracts and fragrances, can cause allergic reactions. Some hair dyes and extensions, as well as minoxidil, a hair growth treatment, can also cause allergies. Botulinum toxin A can effectively reduce sweat but may have temporary side effects.

Human skin makes sexual hormones that affect hair growth, skin health, and healing; too much can cause acne and hair loss, while treatments can manage these conditions.

Apoptosis is essential for human skin development and forming a functional epidermis.

Creating fully functional artificial skin for chronic wounds is still very challenging.

Different types of stem cells and their environments are key to skin repair and maintenance.

Modulating BMP activity changes the number, size, shape, and type of ectodermal organs.

Hair analysis can detect cocaine use but doesn't accurately show the amount or timing of use.

Giving a special protein to dogs with a certain genetic disease improved their symptoms but didn't help with hair growth.

Different types of skin pores should be identified correctly and evaluated with suitable methods for reliable results.

The skin protects the body and is constantly renewed by stem cells; disruptions can lead to cancer.

Progress has been made in skin and nerve regeneration, but more research is needed to improve methods and ensure safety.

Advanced human skin models improve drug development and could replace animal testing.

Wait 4-5 weeks after drug use before hair testing and cut hair into three segments to confirm single drug exposure.

Condensed nanofat with fat grafts effectively improves atrophic facial scars.

Most cases of Temporal Triangular Alopecia are found in early childhood and may be related to genetic conditions.

Thyroid hormone affects skin health, with too little causing rough, pale skin and too much leading to smooth, thin skin, and may also impact wound healing and skin conditions.

Nevus comedonicus is a rare skin condition with grouped open pores, sometimes linked to other body issues.

The hydrogel with fractionated PRP improves skin regeneration by enhancing wound healing and growth of skin structures.

Heparan sulfate is important for hair growth, preventing new hair formation in mature skin, and controlling oil gland development.

The skin is the largest organ, protecting the body, regulating temperature, and producing hormones.

Sebum helps protect human skin from microbes.

Thyroid hormones affect skin texture, hair and nail growth, and can cause skin diseases related to thyroid problems.

Skin organoids from stem cells could better mimic real skin but face challenges.

Connexin 30 is usually absent in normal skin but can appear in certain skin conditions.

Telocytes in the scalp may help with skin regeneration and maintenance.

A new classification system for skin cysts was proposed to improve diagnosis.

Alopecia areata causes varying hair loss patterns, affecting hair, nails, and possibly glands, with treatment outcomes depending on disease duration and extent.

Androgen receptors found in monkey scalps, similar to humans, affect hair growth.